LFE2M20SE-5FN256C Lattice, LFE2M20SE-5FN256C Datasheet - Page 25
LFE2M20SE-5FN256C
Manufacturer Part Number
LFE2M20SE-5FN256C
Description
FPGA - Field Programmable Gate Array 19K LUTs 140 I/O S-Ser SERDES DSP -5
Manufacturer
Lattice
Datasheet
1.LFE2-12SE-6FN256C.pdf
(389 pages)
Specifications of LFE2M20SE-5FN256C
Number Of Macrocells
19000
Maximum Operating Frequency
311 MHz
Number Of Programmable I/os
140
Data Ram Size
1246208
Supply Voltage (max)
1.26 V
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
0 C
Mounting Style
SMD/SMT
Supply Voltage (min)
1.14 V
Package / Case
FPBGA-256
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LFE2M20SE-5FN256C
Manufacturer:
Lattice Semiconductor Corporation
Quantity:
10 000
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Lattice Semiconductor
• MULT (Multiply)
• MAC (Multiply, Accumulate)
• MULTADDSUB (Multiply, Addition/Subtraction)
• MULTADDSUBSUM (Multiply, Addition/Subtraction, Accumulate)
The number of elements available on each block depends in the width selected from the three available options x9,
x18, and x36. A number of these elements are concatenated for highly parallel implementations of DSP functions.
Table 2-7 shows the capabilities of the block.
Table 2-7. Maximum Number of Elements in a Block
Some options are available in four elements. The input register in all the elements can be directly loaded or can be
loaded as a shift register from previous operand registers. By selecting “dynamic operation” the following opera-
tions are possible:
• In the ‘Signed/Unsigned’ options the operands can be switched between signed and unsigned on every cycle.
• In the ‘Add/Sub’ option the Accumulator can be switched between addition and subtraction on every cycle.
• The loading of operands can switch between parallel and serial operations.
MULT
MAC
MULTADDSUB
MULTADDSUBSUM
Width of Multiply
x9
8
2
4
2
2-22
x18
4
2
2
1
LatticeECP2/M Family Data Sheet
Architecture
x36
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1
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